Merge pull request #342 from RaphaelRochet/master

French translation update
default theme updates
default theme update (2)
remove feeds-holder shadow
minor css tweaks
minor css tweaks
unify main and headlines toolbar
fix selected prompt position
further style updates
prefs style updates, etc
improve contrast a bit
filter dialog, use common background for actions
minor css tweak
remove fixed alpha from mark/pub unset icons, update checkbox styling
update checkbox styling
disable :focus selector
move Zoom stylesheet to a separate file
update stylesheet/javascript tag helpers to return output instead of
printing it
add previously missed zoom.css
remove unused scriptaculous parts
remove transition from disabled checkbox
bring back expando progressbars in feedtree